Pi Squared is Irrational/Decimal Expansion

Decimal Expansion

The decimal expansion of Pi squared ($\pi^2$) begins:

$9 \cdotp 86960 \, 44010 \, 89358 \ldots$

This sequence is A002388 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).

Sources

• 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): Table $1.1$. Mathematical Constants